OK, I don't think this is a plow. I believe it's a "ditch witch". It would be used to cut ditches for dropping piping and cable and such underground. As far as it being Victorian...I don't thinks either. the give away to me are the carbide detachable cutting heads on the points. I think that would be 20th century.
At any rate, I love the photo...7 and it would be really cool to see the entire machine. I dig old machines.